# Difference between revisions of "Scaling Rotating Mirroring Clipping"

You can use the commands for text, but also for graphics or other “building blocks”.

# Scaling

You can insert symbols at a reduced size in the text flow.

\getscaledglyph{.5}{Serif}{a} a \getscaledglyph{2}{Serif}{a}


# Mirroring

There is a \mirror{\sl mirorred} {\sl word} in this sentence.


\mirror makes a \hbox and mirrors the contents. If you want to have a longer paragraph mirrored, you have to make a \vbox manually.

\mirror{\vbox{Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do:
once or twice she had peeped into the book her sister was reading, but it had no pictures or conversations in it, and
what is the use of a book,' thought Alice without pictures or conversation?'}}


# Rotating

You can rotate something by an arbitrary angle by saying something like

\rotate[rotation=42]{the ultimate answer}


The rotation angle and the location (which determines around which point the content is rotated) are optional and can also be set by

\setuprotate[rotation=42,location=normal] % normal is the default


## Location parameter

An example by Hans Hagen showing the influence of location= argument at different angles:

\dostepwiserecurse{0}{359}{45}
{\startlinecorrection[blank]
\hbox
{\expanded{\setuprotate[rotation=\recurselevel]}%
\traceboxplacementtrue
\hbox to .2\hsize{\hss\ruledhbox{\rotate[location=depth] {\ruledhbox{\bfb  (depth)}}}}%
\hbox to .2\hsize{\hss\ruledhbox{\rotate[location=fit]   {\ruledhbox{\bfb    (fit)}}}}%
\hbox to .2\hsize{\hss\ruledhbox{\rotate[location=normal]{\ruledhbox{\bfb (normal)}}}}%
\hbox to .2\hsize{\hss\ruledhbox{\rotate[location=high]  {\ruledhbox{\bfb   (high)}}}}}
\stoplinecorrection}


You can rotate a long paragraph as well.

The following code shows how the location parameter influences rotation with a frame:

\setupbodyfont[sans, 30pt]
\setuppagenumbering[location=,]
\showframe

\starttext
\topskip4cm
\dostepwiserecurse{0}{360}{10}{
\ruledhbox{\rotate[rotation=\recurselevel, location=\recursestring]{%
\framed
[width=\textheight, height=\textwidth, rulethickness=5pt,
depth=0cm, foregroundstyle=\bfd]
{\recursestring, \recurselevel°}
}
}
}
}
\stoptext


## In a box

Depending on the usage you will sometimes probably want to include the content of what you wish to rotate into a box. Compare the following two examples:

\setuplayout[width=3cm]

a\rotate{e}i\par
a\rotate{\hbox{e}}i


## Page dependent landscape figures

Sometimes, in a double-sided portrait document, you may wish to rotate a landscape figure so that the top is towards the spine of the book – no matter whether it's on an odd or even page. In this case the \doifoddpageelse command can help:

\rotate[rotation=\doifoddpageelse{90}{270}]{\externalfigure[cow]}


This example is by Wolfgang, from the thread starting here. The thread contains other solutions to the problem.

# Clipping

You can adjust the size of an element by cropping/clipping its borders:

\clip[nx=3,ny=3,x=1,y=1]{\externalfigure[cow]}


\setupcolors[state=start]
\definedfont[SansBold at 20mm]
\baselineskip 0pt % switch off the space between the stripes
\lineskip 0pt
\def\MyLogo{\vbox{\hbox{\CONTEXT}\null}} % null is necessary for the whole bounding box
\clip[ny=3,y=1]{\color[yellow]\MyLogo}
\clip[ny=3,y=2]{\color[orange]\MyLogo}
\clip[ny=3,y=3]{\color[red]\MyLogo}